[kragen]

Yeah, but we're only talking about <4km here. Rain fade in the 2.4GHz band could produce up to 2dB of attenuation under flash-flood-thunderstorm conditions. 2dB is not a big deal! At 10km or 20km or 40km you might have a point.

[chopsueyar]

So, 2.4GHz can transmit through trees?

[kragen]

It depends. It doesn't penetrate very far into the trunk, but it doesn't have that much trouble with leaves and twigs. (Until they get rained on.) So you can have a line of sight that's pretty much blocked by trees visually, but quite clear in 2.4GHz.

[chopsueyar]

So, if it is raining and the tree gets wet, it will not transmit through the tree, correct?

[kragen]

It's not that simple. Attenuation increases when it rains and the tree gets wet, but whether the attenuation is enough to cut off your connection entirely depends on a lot of things. But sometimes, yes.

[chopsueyar]

Well, this was some useful discourse.